Explosions and machine gun fire wre heard throughout Kyiv as many sought shelter in subway stations

The attack came hours after Russia and Ukraine began a major prisoner exchange of hundreds of soldiers and civilians, the first phase of a swap agreed on by the two sides at a meeting in Istanbul last week

The agreement was a rare moment of cooperation in otherwise failed efforts to reach a ceasefire in the 3-year-old war

Russia attacked Ukraine with 14 ballistic missiles and 250 Shahed drones overnight, officials said, adding that Ukrainian forces shot down 6 missiles and neutralised 245 drones - 128 drones were shot down and 117 were thwarted using electronic warfare

The Kyiv City Military Administration said it was one of the most massive combined missile and drone attacks on the capital

"A difficult night for all of us," the administration said in a statement